BlackRock reported that, as of November 4, 2026, its aggregate stake in Companhia de Saneamento de Minas Gerais (Copasa MG, CSMG3) stood at 19,077,303 common shares, equivalent to approximately 5.017% of the company's total common shares. Copasa received the notice on November 6, 2026.
In addition to the shares, the asset manager holds 76,372 cash-settled financial derivative instruments referenced to common shares, representing approximately 0.020% of the total common shares issued by Copasa.
BlackRock acts on behalf of some of its clients as an investment manager. According to the letter, the purpose of the stake is strictly investment, with no intention of changing Copasa's shareholder control or management structure. The asset manager also stated that it has not entered into any contracts or agreements regulating the exercise of voting rights or the purchase and sale of securities issued by the company.






